Title manga of bl thai until we meet again

Hi guys i saw on tiktok that someone has share a translated spanish manga but i dunno what's the title of that manga so i search it on comments saying that manga was based of some thai bl story called "the red thread/until we meet again" im not really into watching drama so i just searching through mangago/any website with same title turns out the title was not that could someone perhaps know what title of this manga is?